PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1794-TB3T is a FLEX I/O Terminal Base for Thermocouple Input modules. It provides termination for up to 16 input or output field connections. The unit includes eight dedicated chassis ground terminals for system wiring. It supports application voltages up to 125 VAC or DC with a 10 A current rating.
This terminal base operates within a temperature window from -20°C to 70°C. Storage temperatures range from -20°C to 85°C across industrial environments. It withstands mechanical vibration of 5 g from 10 Hz to 150 Hz. Relative humidity tolerance spans 5% to 95% non-condensing. Terminal block screws require a tightening torque between 0.56 and 0.79 Nm.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Product Line | Flex I/O 1794 |
|---|
| UPC | 612598170760 |
|---|
| Weight | 0.56 lbs (0.26 kg) |
|---|
| Ground Terminals | 8 Chassis Ground Terminals |
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| Number of I/O | 16 I/O |
|---|
| Used in Applications | Up to 125 VAC/DC |
|---|
| Current Rating | 10 A |
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| Min. Frequency | 50 Hz |
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| Max. Frequency | 60 Hz |
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| Operating Temperature Range | -20 to 70°C |
|---|
| Storage Temperature Range | -20 to 85°C |
|---|
| Relative Humidity | 5 to 95% (non-condensing) |
|---|
| Vibration Resistance | 5 g from 10 Hz to 150 Hz |
|---|
TECHNICAL INFORMATION
Features
- Accommodates up to 16 field input and output wiring terminations.
- Provides eight chassis ground terminals for field cable shield connections.
- Supports operating voltages up to 125 VAC/DC at 10 A continuous.
- Operates across ambient temperatures from -20°C to 70°C.
- Withstands mechanical vibration of 5 g from 10 Hz to 150 Hz.
TECHNICAL INFORMATION
Applications
- Thermocouple input signal termination in distributed control networks.
- FLEX I/O system interfacing in process temperature monitoring assemblies.
- Industrial automation cabinets requiring dedicated chassis ground terminations.
TECHNICAL INFORMATION
Connections / Interfaces
- Sixteen field wiring terminal points for input and output instrumentation signals.
- Eight dedicated chassis ground connection screws for shield termination.
TECHNICAL INFORMATION
Installation Guidelines
- Tighten all terminal block screws to between 0.56 and 0.79 Nm.
- Ensure field wire sizes fall within 0.34 to 3.3 mm².
- Secure field shield drains to the designated chassis ground screw points.
TECHNICAL INFORMATION
Configuration Guidelines
- Verify terminal base seating into the DIN rail before applying control power.
- Ensure signal wiring matches the channel layout of the installed module.
TECHNICAL INFORMATION
Compatibility
- Allen-Bradley 1794 FLEX I/O platform.
- Allen-Bradley FLEX I/O thermocouple input modules.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSAllen-Bradley 1794 FLEX I/O platform. Allen-Bradley FLEX I/O thermocouple input modules.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the primary function of the Allen-Bradley 1794-TB3T?
The 1794-TB3T provides a mounting and wiring base for FLEX I/O thermocouple input modules.
How many ground terminals are available on the 1794-TB3T?
The unit features eight dedicated chassis ground connection terminals.
What is the recommended terminal screw torque for field wiring?
Terminal screws should be tightened to a torque between 0.56 and 0.79 Nm.
What is the reference price for an Allen-Bradley 1794-TB3T?
Observed market reference pricing is approximately $172.00 USD. Figures are indicative reference pricing only and not a final quotation.
